公开(公告)号：US20240034688A1

公开(公告)日：2024-02-01

申请号：US18228369

申请日：2023-07-31

Applicant: California Institute of Technology

Inventor： Katherine T. FABER ,  Julia A. KORNFIELD ,  Noriaki ARAI ,  Orland BATEMAN ,  Rustem F. ISMAGILOV

IPC: C04B38/06 ,  B01D67/00 ,  B01D69/02 ,  B01D71/02 ,  B01J35/04 ,  B01J35/10 ,  C04B38/00 ,  H01B1/14 ,  H01B1/16

CPC classification number: C04B38/0605 ,  B01D67/0051 ,  B01D69/02 ,  B01D71/024 ,  B01J35/04 ,  B01J35/1071 ,  B01J35/1076 ,  C04B38/0038 ,  C04B38/0054 ,  C04B38/007 ,  C04B38/0093 ,  H01B1/14 ,  H01B1/16 ,  B01D2325/021 ,  B01D2325/26

Abstract: Provided herein are methods for making a freeze-cast material having a internal structure, the methods comprising steps of: determining the internal structure of the material, the internal structure having a plurality of pores, wherein: each of the plurality of pores has directionality; and the step of determining comprises: selecting a temperature gradient and a freezing front velocity to obtain the determined internal structure based on the selected temperature gradient and the selected freezing front velocity; directionally freezing a liquid formulation to form a frozen solid, the step of directionally freezing comprising: controlling the temperature gradient and the freezing front velocity to match the selected temperature gradient and the selected freezing front velocity during directionally freezing; wherein the liquid formulation comprises at least one solvent and at least one dispersed species; and subliming the at least one solvent out of the frozen solid to form the material.

公开(公告)号：US20220234007A1

公开(公告)日：2022-07-28

申请号：US17558186

申请日：2021-12-21

Applicant: California Institute of Technology

Inventor： Julia A. KORNFIELD ,  Katherine T. FABER ,  Mamadou DIALLO ,  Orland BATEMAN ,  Noriaki ARAI

IPC: B01D69/12 ,  C08L27/16 ,  B01J31/16 ,  B01J31/06 ,  B01J37/00 ,  C07K1/22 ,  B01D71/34 ,  B01D71/60 ,  B01D15/36 ,  B01D15/38

Abstract: A composite, method of making the composite, and method of using the composite are disclosed. The composite comprises a macroporous scaffold comprising pores; and a polymer matrix positioned within the pores; wherein the polymer matrix comprises: a functional polymer particle; and a structural polymer. The method of using can comprise applications such as chromatography, catalysis, and sensing, among others.